217638865

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{12791}}^1$

素因数の和:12920

約数の個数: 16

約数和(自身を含む): 270781056

約数和(自身を除く): 53142191

約数列:

[1, 5, 41, 83, 205, 415, 3403, 12791, 17015, 63955, 524431, 1061653, 2622155, 5308265, 43527773, 217638865]

約数ペア:

[(1, 217638865), (5, 43527773), (41, 5308265), (83, 2622155), (205, 1061653), (415, 524431), (3403, 63955), (12791, 17015)]